Seiko Cal. 7131 - 959

This Spring Drive model from 1987 features a 41mm Hardlex-Coated Steel case. With its 19mm lug width and 8.4mm profile, it sits comfortably on most wrists. [seikata-wm-79bd562bb0e0]

Also known as: Turtle, World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

8.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Champagne

Jewels

28j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1987

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